Transformer Protection
Amp-Trap® CS-3 Series and 9F60/9F62 Series
2.75kV, 5.5kV, 8.25kV, 15.5kV, 25.8kV and 38kV
Ferrule Mounted Fuses
Mersen fuses for the protection of transformers and distribution lines deliver overload
and short circuit protection. These current-limiting fuses will melt at current that can
be as low as 1.7 times the fuse current ratings up to its maximum interrupting rating.
These fuses are designed to withstand the transformer magnetizing inrush current.
They have 2 (size C), 3 (size D) and 4 (size E) inch diameter barrels with ferrules and
are mounted in spring reinforced clips.
Features/Benefits:
•• Amp-Trap CS-3 and 9F62 series are UL listed for compatibility with UL listed
equipment.
•• Ferrule mounting for standard clips and interchangeability with other brands of fuses.
•• Current-limiting for superior equipment protection.
•• Non-venting for silent operation
•• Metal embossed catalog number and manufacturing date for lasting identification.
•• Outdoor usage for the 9F62 and 9F60 type EJO.
•• Blown-fuse indicator to give positive identification of open fuse:
Ratings
•• See page E3 for listing
•• Amp-Trap: 2” Barrel 1 lb tripped force - 0.19 Inch
•• Amp-Trap: 3” Barrel 2 lb tripped force - 0.50 Inch
•• 9F60/9F62: 0.125 lb tripped force – 0.20 Inch
•• Accessories - see page E53
Highlights:
Applications:
•• E-Rated
•• Protection for 2.4kV to 34.5kV
•• UL listed
transformers or distribution
•• Outdoor use
systems.
Definitions:
General Purpose Current-Limiting Fuses (Per IEEE Std C37.40-2003):
A general purpose current-limiting fuse is one that is capable of interrupting all
currents from its rated interrupting current down to the current that causes melting
of the fusible element(s) in one hour or more.
E-Rating: E-Rated fuses are general purpose fuses that operate as follow (Per ANSI
C37.46-2000):
•• 100E or less – must melt in 300 seconds (5 mins.) at 200 to 240% of E
(ampere) rating.
•• Over 100E – must melt in 600 seconds (10 mins.) at 220 to 264% of E
(ampere) rating.
•• Example: A 100E fuse must melt in 300 seconds with an applied current of 200
to 240 amperes.
Power Distribution Fuses:
Defines fuses designed prior to the time where the ANSI standards defined the term
“General Purpose” and do not meet all of the general purpose definition. These fuses
are capable of interrupting all currents above 2.2 to 3 times the fuse’s rated current up
to its maximum interrupting rating.
E2
Approvals:
•• UL listed to standard File
E143362
Transformer Protection
Amp-Trap® CS-3 Series and 9F60/9F62 Series
Ferrule Mounted Fuses
Amp-Trap CS-3 Series: (Indoors or outdoors in a weatherproof enclosure)
A055F: 5.5kV – AC: 5E to 450E – 63kA I.R. Sym
A825X: 8.25kV – AC: 10E to 200E – 50kA I.R. Sym
A155F: 15.5kV – AC: 5E to 200E – 50 kA I.R. Sym
9F62 Series Type EJO-1: (Indoors and outdoors)
9F62:
5.5kV – AC: 25A to 450A – 50kA IR Sym
9F62:
8.3kV – AC: 20A to 250A – 50 kA IR Sym
9F62:
15.5kV – AC: 20A to 200A – 50 kA IR Sym
E
9F60 Series Type EJO-1: (Indoors and outdoors)
9F60:
2.75kV – AC: 1E to 200E – 50kA IR Sym
9F60:
5.5kV – AC: 0.5E to 200E – 50kA IR Sym
9F60:
8.25kV – AC: 0.5E to 200E – 50kA IR Sym
9F60:
15.5kV – AC: 0.5E to 100E – 50kA to 120kA IR Sym
9F60:
25.8kV – AC: 0.5E to 100E – 25kA to 35kA IR Sym
9F60:
38kV – AC: 1E to 80E – 13kA to 26kA IR Sym
9F60 Series Type EJ-1: (Indoors or outdoors in a weatherproof enclosure)
9F60:
2.75kV – AC: 1E to 200E – 47kA to 52kA IR Sym
9F60:
5.5kV – AC: 0.5E to 25E – 63kA IR Sym
9F60:
15.5kV – AC: 2E to 175E – 31kA to 82kA IR Sym
9F60:
25.8kV – AC: 0.5E to 2E – 35kA IR Sym
9F series
A = 3.31 inches (84mm)
9F series
B = 6.16 inches (160mm)
Amp-Trap series A = 3.63 inches (92 mm)
Amp-Trap series B = 6.63 inches (169 mm)
For the most current product performance data visit ep.mersen.com and use catalog search.
E3
Transformer Protection
Amp-Trap® CS-3 Series and 9F60/9F62 Series
5.5kV Ferrule mounted fuses:
5.5kV Power Distribution fuses – 9F60 Series, E-Rated EJ-1
9" (229 mm) Clip Centers - Suitable for use indoors or in an enclosure only
Amp
No. of
Rating
Barrels
9F60CED905
0.5E
9F60CED001
1E
9F60CED002
2E
9F60CED003-S
3E
9F60CED005
5E
9F60CED007
7E
9F60CED010
10E
9F60CED015
15E
9F60CED020
20E
9F60CED025
25E
1
Indicating
Yes
Diameter
Length
Max
Max IR
Fuse Support
Fuse Support
Fuse Disconnect
Fuse Disconnect
Inches (mm)
Inches (mm)
Voltage
RMS Sym
Indoor (EK-1)
Outdoor (EK0-1)
Indoor (EK-3 )
Outdoor (EK0-3 )
2 (50.8)
11.18 (284)
5.5 kV
63kA
9F61ACB201
N/A
9F61ACB205
N/A
E
Catalog No.
5.5kV E-Rated Amp-Trap CS-3 Series – UL Listed
12" (305 mm) Clip Centers - Suitable for use indoors or in an enclosure only
Catalog No.
Amp
No. of
Rating
Barrels
A055F1C0R0-5E
5E
A055F1C0R0-7E
7E
A055F1C0R0-10E
10E
A055F1C0R0-15E
15E
A055F1C0R0-20E
20E
A055F1C0R0-25E
25E
A055F1C0R0-30E
30E
A055F1C0R0-40E
40E
A055F1C0R0-50E
50E
A055F1C0R0-65E
65E
A055F1D0R0-10E
10E
A055F1D0R0-15E
15E
A055F1D0R0-20E
20E
A055F1D0R0-25E
25E
A055F1D0R0-30E
30E
A055F1D0R0-40E
40E
A055F1D0R0-50E
50E
A055F1D0R0-65E
65E
A055F1D0R0-80E
80E
A055F1D0R0-100E
100E
A055F1D0R0-125E
125E
A055F1D0R0-150E
150E
A055F1D0R0-175E
175E
A055F1D0R0-200E
200E
A055F2D0R0-250E
250E
A055F2D0R0-300E
300E
A055F2D0R0-350E
350E
A055F2D0R0-400E
400E
A055F2D0R0-450E
450E
Indicating
Diameter
Max
Max IR
Fuse Support
Fuse Support
Fuse Disconnect Fuse Disconnect
Inches (mm) Inches (mm)
Length
Voltage
RMS Sym
Indoor (EK-1)
Outdoor (EK0-1)
Indoor (EK-3 )
Outdoor (EK0-3 )
1
Yes
2 (50.8)
14.18 (360)
5.5kV
63kA
9F61AEG201
N/A
9F61AEG205
N/A
1
Yes
3 (76.2)
15.88 (403)
5.5kV
63kA
9F61AEB301
N/A
9F61AEB305
N/A
2
Yes
3 (76.2)
15.88 (403)
5.5kV
63kA
–
N/A
–
N/A
For the most current product performance data visit ep.mersen.com and use catalog search.
E5
Transformer Protection
Amp-Trap® CS-3 Series and 9F60/9F62 Series
5.5.kV General Purpose fuses – 9F62 Series, EJO-1 – UL Listed
12" (305 mm) Clip Centers - Suitable for use indoors or outdoors
Catalog No.
Amp
No. of
Rating
Barrels
9F62HCB025
25A
9F62HCB030
30A
9F62HCB040
40A
9F62HCB050
50A
9F62HCB065
65A
9F62DCB080
80A
9F62DCB100
100A
9F62DCB125
125A
9F62DCB150
150A
9F62DCB175
175A
9F62DCB200
200A
9F62FCB250
250A
9F62FCB300
300A
9F62FCB350
350A
9F62FCB400
400A
9F62FCB450
450A
Indicating
Diameter
Inches (mm)
Length
Inches
(mm)
Max
Max IR
Fuse Support
Fuse Support
Fuse Disconnect
Fuse Disconnect
Voltage
RMS Sym
Indoor (EK-1)
Outdoor (EK0-1)
Indoor (EK-3 )
Outdoor (EK0-3 )
1
Yes
2 (50.8)
14.18 (360)
5.5 kV
50kA
9F61AEG201
9F61CEF209
9F61AEG205
9F61CEF210
1
Yes
3 (76.2)
15.88 (403)
5.5 kV
50kA
9F61AEB301
9F61CEF309
9F61AEB305
9F61CEF310
2
Yes
3 (76.2)
15.88 (403)
5.5 kV
50kA
9F61AEB401
9F61CEF409
9F61AEB405
9F61CEF410
5.5kV Power Distribution fuses – 9F60 Series, E-Rated EJO-1
12" (305 mm) Clip Centers - Suitable for use indoors or outdoors
Catalog No.
E6
Amp
No. of
Rating
Barrels
9F60DJD905
0.5E
9F60DJD001
1E
9F60DJD002
2E
9F60DJD003
3E
9F60DJD005
5E
9F60DJD007
7E
9F60DJD010
10E
9F60DJD015
15E
9F60DJD020
20E
9F60DJD025
25E
9F60FJD030
30E
9F60FJD040
40E
9F60FJD050
50E
9F60FJD065
65E
9F60FJD080
80E
9F60FJD100
100E
9F60HJD125
125E
9F60HJD150
150E
9F60HJD200
200E
Indicating
Diameter
Inches (mm)
Length
Inches
(mm)
Max
Max IR
Fuse Support
Fuse Support
Fuse Disconnect
Fuse Disconnect
Voltage
RMS Sym
Indoor (EK-1)
Outdoor (EK0-1)
Indoor (EK-3 )
Outdoor (EK0-3 )
1
Yes
2 (50.8)
14.18 (360)
5.5 kV
50kA
9F61AEG201
9F61CEF209
9F61AEG205
9F61CEF210
1
Yes
3 (76.2)
15.88 (403)
5.5 kV
50kA
9F61AEB301
9F61CEF309
9F61AEB305
9F61CEF310
2
Yes
3 (76.2)
15.88 (403)
5.5 kV
50kA
9F61AEB401
9F61CEF409
9F61AEB405
9F61CEF410